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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Caucete in Argentina

Earthquake location -31.379S, -67.7159WA light earthquake magnitude 4.4 (ml/mb) has struck on Wednesday, 61 kilometers (38 miles) from Caucete in Argentina. The earthquake occurred at a depth of 38.06 km (24 miles). Event id: us2000d0wy. Ids that are associated to the earthquake: us2000d0wy. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -67.7159° West, latitude -31.379° South, depth = 38.06 km. The temblor was reported at 19:57:32 / 7:57 pm (local time epicenter). Global date and time of event UTC/GMT: 31/01/18 / 2018-01-31 22:57:32 / January 31, 2018 @ 10:57 pm.

Nearby country/countries that might be effected, Argentina (c. 41 343 000 pop). The epicenter was 80 km (50 miles) from San Juan (c. 447 000 pop), 78 km (49 miles) from Chimbas (c. 73 800 pop), 76 km (47 miles) from Santa Lucía (c. 43 600 pop), 89 km (55 miles) from Pocito (c. 41 000 pop), 62 km (38 miles) from Caucete (c. 33 600 pop), 77 km (48 miles) from Albardón (c. 20 400 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Pocito, San Agustín de Valle Fértil, San Juan.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days two and in the last 365 days ten earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 61 km ENE of Caucete, Argentina.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -67.7159° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.379° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 38.06 km Depth of the event in kilometers.
Place 61km ENE of Caucete, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-01-31 22:57:32 Time when the event occurred. UTC/GMT
Updated 2018-02-22 05:09:42 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 298 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.479 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.98 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 51 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000d0wy Id of event.
Event Code 2000d0wy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d0wy, A comma-separated list of event ids that are associated to an event.

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